Higher ISO indicates greater sensitivity. NOTE: A higher ISO may produce unwanted “noise” in a picture. Exposure Compensation— adjust the exposure. If the picture is too light, decrease the setting; if it’s too dark, increase the setting. Shutter speed— control how long the shutter stays open. Aperture— (also known as f-stop) control the size of the lens opening, which determines the depth of field. ¦Smaller f-stop numbers indicate a larger lens opening; good for portraits and low-light conditio

A study by the Federal Emergency Management Agency (an agency of the United States government) indicated that smoke detectors may not go off in as many as 35% of all fires. While fire alarm systems are designed to provide early warning against fire, they do not guarantee warning or protection against fire. A fire alarm system may not provide timely or adequate warning, or simply may not function, for a variety of reasons: Smoke detectors may not sense fire where smoke cannot reach the detectors

See diagram for connections. Note: If wiring the relay remote from the alarm, use a maximum of 1000 feet [300 meters] of #18AWG or larger wire rated at least 300V. ALARM CONNECTION RELAY BLACK WIRE (HOT) BLACK WIRE WHITE WIRE (NEUTRAL) WHITE WIRE ORANGE WIRE (INTERCONNECT) ORANGE WIRE Now connect the accessory to be activated by the relay to the relay's switch contact wires as listed below. (Use wiring appropriate to the auxiliary device being controlled.) NOTE: Since voltage is present on